Christopher Horsley (R), a technical assistant to Congolese volcanologists, takes pictures into the crater of Nyiragongo volcano, north of Goma, the provincial capital of North Kivu, on June 11, 2021. Three weeks after Nyiragongo's May 22 eruption, which caused the death of about 30 people and the evacuation of nearly half a million residents of Goma, volcanologists from the Goma Volcanological Observatory climb to the top of the crater to assess volcanic activity. Picture: Alexis Huguet / AFP
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